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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* SPDX-License-Identifier: curl
*
***************************************************************************/
/* <DESC>
* HTTP request with custom modified, removed and added headers
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
int main(void)
{
CURL *curl;
CURLcode res;
curl = curl_easy_init();
if(curl) {
struct curl_slist *chunk = NULL;
/* Remove a header curl would otherwise add by itself */
chunk = curl_slist_append(chunk, "Accept:");
/* Add a custom header */
chunk = curl_slist_append(chunk, "Another: yes");
/* Modify a header curl otherwise adds differently */
chunk = curl_slist_append(chunk, "Host: example.com");
/* Add a header with "blank" contents to the right of the colon. Note that
we are then using a semicolon in the string we pass to curl! */
chunk = curl_slist_append(chunk, "X-silly-header;");
/* set our custom set of headers */
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, chunk);
curl_easy_setopt(curl, CURLOPT_URL, "localhost");
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
/* free the custom headers */
curl_slist_free_all(chunk);
}
return 0;
}
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